Clare said their holiday away from the kids turned out to be a completely ‘stressful’ experience.

‘We were so lucky that we had friends coming so Billy’s mum took the passport to our friend who we met in arrivals,’ she added.

Ryanair told Metro.co.uk: ‘It is the responsibility of each passenger to ensure they travel on their own passport. We regret that our handling agent in Stansted didn’t pick up this error but are pleased that the Spanish authorities were able to assist him (with the help of his friends).’